CVE-2026-45692
Caddy is an extensible server platform that uses TLS by default. From 2.4.0 until 2.11.3, the authorization layer and the /config traversal layer do not agree on what object the path refers to. In this case, a path authorized for one config object is accepted, but then resolves to a different config object during traversal. This happens because the authorization layer uses string prefix matching and the /config traversal layer parses array indices numerically using strconv.Atoi(). This vulnerability is fixed in 2.11.3.
- CVSS 3.1
- 3.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-187, CWE-863
- Published
- Modified
- Record from
- the NVD, synced
Affected
- caddyserver:caddy
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x5w9-xh9r-mvfc | Go | github.com/caddyserver/caddy/v2 | >=2.4.0 <2.11.3 | 2.11.3 |
| GO-2026-5743 | Go | github.com/caddyserver/caddy/v2 | >=2.4.0 <2.11.3 | 2.11.3 |